ICD-10 Code H47.143 – Foster-Kennedy syndrome, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H47.143 – Foster-Kennedy syndrome, bilateral
What it is
H47.143 identifies bilateral Foster-Kennedy syndrome, a rare optic nerve disorder associated with optic disc swelling and optic atrophy. Use it when the record specifically documents this bilateral syndrome.
Clinical signs
Typical findings include optic disc edema in one or both eyes with optic atrophy, often from an intracranial mass effect. Clinical features vary; refer to documentation.
When to use this code
Use this code when the clinician documents bilateral Foster-Kennedy syndrome in the assessment or problem list. It may appear in neuro-ophthalmology notes, consultation reports, or discharge summaries. Confirm laterality and the exact diagnosis wording in the chart.
Do not use for
Do not use it for isolated papilledema, optic atrophy, or other optic nerve disorders without documented Foster-Kennedy syndrome. Check documentation if the record only mentions an intracranial lesion or visual loss.
Coding tip
Assign H47.143 only when bilateral Foster-Kennedy syndrome is explicitly stated; otherwise, code the documented optic nerve condition.